GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 159 086 387 patent documents

This week's update (11/10/2024 12:00 CET):

118 651 new documents added

838 536 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

Use built-in charts to visualise technical trends and patenting activity of companies

Choose the data you want to see and download to focus on what you are interested in

Run data quality assessments to measure the risk of incomplete search results

EP 0209906 A2 19870128 - Binder for dry sand mold and method of its usage.

Title (en)

Binder for dry sand mold and method of its usage.

Title (de)

Bindemittel für Formsande und Verfahren zu seiner Verwendung.

Title (fr)

Liant pour sable de moulage et son procédé d'utilisation.

Publication

EP 0209906 A2 19870128 (EN)

Application

EP 86110222 A 19860724

Priority

JP 16371185 A 19850724
JP 17524685 A 19850809
JP 17524785 A 19850809

Abstract (en)

The present invention provides a binder for foundry sand which comprises a hydrolysate of a butadiene/maleic anhydride copolymer, a neutralized or a partially neutralized product of the hydrolysate, a modified product prepared by modifying the hydrolysate with a basic organic compound, or a mixture thereof.

IPC 1-7

B22C 1/22

IPC 8 full level

B22C 1/22 (2006.01)

CPC (source: EP US)

B22C 1/2206 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0209906 A2 19870128; EP 0209906 A3 19871007; EP 0209906 B1 19911002; DE 3681763 D1 19911107; US 4691759 A 19870908

DOCDB simple family (application)

EP 86110222 A 19860724; DE 3681763 T 19860724; US 88801086 A 19860722